Noted, but i always afraid buying electronic things online. I know, they have official store on many marketplace but you know, i have to see it by myself to make sure of everything before buy it. LOLYup, Depend of situation for specific item and if there a offline market for it better sell it offline, but for some item like electronic better sell it online, like OLX I use it sometimes for selling my old smartphone or pc hardware and the respond is very quick just need wait for a couple hours and you will get a good buyer for your items.